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Ray Set visibility: public 75c10d3 3d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "tca6424rgjr",
  "title": "TCA6424RGJR",
  "brief": "Texas Instruments I/O Expanders, UQFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "communication interface chip",
    "tca6424rgjr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TCA6424RGJR",
    "manufacturer": "Texas Instruments",
    "package": "UQFN-32(5x5)",
    "pin_count": 33,
    "category": "Communication Interface Chip",
    "subcategory": "I/O Expanders",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tca6424",
    "parts": {
      "symbol": "tca6424rgjr.kicad_sym",
      "footprint": "tca6424rgjr.kicad_mod",
      "model_3d": "tca6424rgjr-hero.glb",
      "model_3d_plain": "tca6424rgjr-etched.glb",
      "model_3d_step": "tca6424rgjr-etched.step",
      "model_3d_step_plain": "tca6424rgjr.step",
      "lbr": "tca6424rgjr.lbr"
    },
    "distributor_links": {
      "lcsc": "C3189292"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T18:27:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 871 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P00",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P00 is configured as an input."
      },
      {
        "number": "2",
        "name": "P01",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P01 is configured as an input."
      },
      {
        "number": "3",
        "name": "P02",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P02 is configured as an input."
      },
      {
        "number": "4",
        "name": "P03",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P03 is configured as an input."
      },
      {
        "number": "5",
        "name": "P04",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P04 is configured as an input."
      },
      {
        "number": "6",
        "name": "P05",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P05 is configured as an input."
      },
      {
        "number": "7",
        "name": "P06",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P06 is configured as an input."
      },
      {
        "number": "8",
        "name": "P07",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P07 is configured as an input."
      },
      {
        "number": "9",
        "name": "P10",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P10 is configured as an input."
      },
      {
        "number": "10",
        "name": "P11",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P11 is configured as an input."
      },
      {
        "number": "11",
        "name": "P12",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P12 is configured as an input."
      },
      {
        "number": "12",
        "name": "P13",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P13 is configured as an input."
      },
      {
        "number": "13",
        "name": "P14",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P14 is configured as an input."
      },
      {
        "number": "14",
        "name": "P15",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P15 is configured as an input."
      },
      {
        "number": "15",
        "name": "P16",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P16 is configured as an input."
      },
      {
        "number": "16",
        "name": "P17",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P17 is configured as an input."
      },
      {
        "number": "17",
        "name": "P20",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P20 is configured as an input."
      },
      {
        "number": "18",
        "name": "P21",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P21 is configured as an input."
      },
      {
        "number": "19",
        "name": "P22",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P22 is configured as an input."
      },
      {
        "number": "20",
        "name": "P23",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P23 is configured as an input."
      },
      {
        "number": "21",
        "name": "P24",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P24 is configured as an input."
      },
      {
        "number": "22",
        "name": "P25",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P25 is configured as an input."
      },
      {
        "number": "23",
        "name": "P26",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P26 is configured as an input."
      },
      {
        "number": "24",
        "name": "P27",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P27 is configured as an input."
      },
      {
        "number": "25",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "26",
        "name": "ADDR",
        "type": "input",
        "description": "Address input; connect directly to VCCP or ground."
      },
      {
        "number": "27",
        "name": "VCCP",
        "type": "power_in",
        "description": "Supply voltage of TCA6424 for P port, 1.65 V to 5.5 V recommended."
      },
      {
        "number": "28",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset input; connect to VCCP through a pullup resistor if no active connection is used."
      },
      {
        "number": "29",
        "name": "SCL",
        "type": "input",
        "description": "Serial clock bus; connect to VCCI through a pullup resistor."
      },
      {
        "number": "30",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Serial data bus; connect to VCCI through a pullup resistor."
      },
      {
        "number": "31",
        "name": "VCCI",
        "type": "power_in",
        "description": "Supply voltage of I2C bus (1.65 V to 5.5 V); connect directly to the VCC of the external I2C master, provides voltage-level translation."
      },
      {
        "number": "32",
        "name": "INT",
        "type": "output",
        "description": "Open-drain interrupt output; connect to VCCI through a pullup resistor."
      },
      {
        "number": "33",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin types for SDA (bidirectional open-drain), INT (open-drain output) and ADDR are inferred from the; The datasheet pin table does not mention a thermal pad for the RGJ package; none was included.; Device is marked Not Recommended for New Designs (NRND)."
        ],
        "pages_sent": 8,
        "cost_usd": 0.1106,
        "at": "2026-10-23T18:27:22"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tca6424",
        "pages": 37,
        "sha256": "076b529753c2066c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tca6424rgjr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          5,
          0.875
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tca6424rgjr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          5,
          0.875
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "735f412c54ee004fd6994220d0fb07fe634edf7615d5cf622320419109c0695f",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "UQFN-32(5x5)",
      "Category": "Communication Interface Chip",
      "Pins": "33"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "076b529753c2066cf7681af7afdb485af754ed7d81e9b8bf623195287aa543f2",
      "rows": [
        {
          "name": "Supply voltage VCCI",
          "symbol": "VCCI",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.65,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VCCP",
          "symbol": "VCCP",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.65,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating free-air temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "High-level output current P27-P00",
          "symbol": "IOH",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "P27–P00",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Low-level output current P27-P00",
          "symbol": "IOL",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "P27–P00",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage range VCCI",
          "symbol": "VCCI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage range VCCP",
          "symbol": "VCCP",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Output voltage range",
          "symbol": "VO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Package thermal impedance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 50.05,
          "max": null,
          "conditions": "RGJ package",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input diode clamp voltage",
          "symbol": "VIK",
          "kind": "electrical",
          "unit": "V",
          "min": -1.2,
          "typ": null,
          "max": null,
          "conditions": "II = –18 mA, VCCP 1.65 V to 5.5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Power-on reset voltage",
          "symbol": "VPOR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1,
          "max": 1.4,
          "conditions": "VI = VCCP or GND, IO = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "SDA low-level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 3,
          "typ": null,
          "max": null,
          "conditions": "SDA VOL = 0.4 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "INT low-level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 3,
          "typ": 15,
          "max": null,
          "conditions": "INT VOL = 0.4 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input leakage SCL, SDA",
          "symbol": "II",
          "kind": "electrical",
          "unit": "μA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VI = VCCI or GND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input leakage ADDR, RESET",
          "symbol": "II",
          "kind": "electrical",
          "unit": "μA",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "VI = VCCP or GND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "P port input high current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VI = VCCP",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "P port input low current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VI = GND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 8,
          "max": 30,
          "conditions": "fSCL = 400 kHz, IO = 0, I/O = inputs",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 1.7,
          "max": 10,
          "conditions": "fSCL = 100 kHz, IO = 0, I/O = inputs",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Standby supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.1,
          "max": 2,
          "conditions": "fSCL = 0, IO = 0, I/O = inputs",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Additional standby current ΔICCP",
          "symbol": "ΔICCP",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "One input at VCCP – 0.6 V, other inputs at VCCP or GND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Additional standby current ΔICCI",
          "symbol": "ΔICCI",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "One input at VCCI – 0.6 V, other inputs at VCCI or GND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input capacitance SCL",
          "symbol": "CI",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 6,
          "max": 7,
          "conditions": "VI = VCCI or GND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "I/O capacitance SDA",
          "symbol": "Cio",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 7,
          "max": 8,
          "conditions": "VIO = VCCI or GND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "I/O capacitance P port",
          "symbol": "Cio",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 7.5,
          "max": 8.5,
          "conditions": "VIO = VCCP or GND",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "I2C clock frequency (fast mode)",
          "symbol": "fscl",
          "kind": "timing",
          "unit": "kHz",
          "min": 0,
          "typ": null,
          "max": 400,
          "conditions": "Fast mode",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Reset time",
          "symbol": "tRESET",
          "kind": "timing",
          "unit": "ns",
          "min": 600,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Output data valid",
          "symbol": "tPV",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
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